Home / 129,172-288,584

Finding the Third Proportional to 129,172 and 288,584

Calculator

Solution

The third proportional to 129,172 and 288,584 is: 644,727.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,172 : 288,584 = 288,584 : x
  2. Step 2: Convert to fraction form
    129,172/288,584 = 288,584/x
  3. Step 3: Cross multiply
    129,172x = 288,584 × 288,584
  4. Step 4: Simplify right side
    129,172x = 83,280,725,056
  5. Step 5: Solve for x
    x = 83,280,725,056/129,172
  6. Step 6: Final answer
    x = 644,727.38

Related Problems

Find third proportional to 64,586 and 144,292
Half scale
Find third proportional to 258,344 and 577,168
Double scale
Find third proportional to 129,174 and 288,588
Similar ratio
Find third proportional to 193,758 and 432,876
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.